Cho Jin-woong as Won-ho

Cha Seung-won as Brian

Han Hyo-joo as Big Knife

Oh Seung-hoon as Seo Young-rak

Lee Joo-young as Lona

Kim Dong-young as Manko

Jung Jun-won as Deok-cheon

Seo Ha-jung as Eun-gwan

Kang Seung-hyun as So-yeon

Jo Han-chul as Jay

Lee Sang-hee as Deok-cheon's wife

Choi Gwang-il as Chief Song

Park Hae-jun as Park Seon-chang

Yang Ik-june as Chief Woo

Tzi Ma as Professor Lee

Byun Yo-han as Jin Ha-rim

Jun Suk-ho as Chinese Gangster